Gilead Sciences, Inc.
CH ˙ SWX ˙ US3755581036
SecurityCH:GILD / Gilead Sciences, Inc.
InstitutionVestmark Advisory Solutions, Inc.
Latest Disclosed Ownership24,327 shares
Latest Disclosed Value $ 3,390,658
Vestmark Advisory Solutions, Inc. reports 198.12% increase in ownership of GILD / Gilead Sciences, Inc.

On May 15, 2026 - Vestmark Advisory Solutions, Inc. filed a 13F-HR form disclosing ownership of 24,327 shares of Gilead Sciences, Inc. (CH:GILD) valued at $3,390,658 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 6, 2026 disclosing 8,160 shares of Gilead Sciences, Inc.. This represents a change in shares of 198.12% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F GILEAD SCIENCES COM 375558103 24,327 16,167 198.12 3,391 238.66 0.0233
2026-02-06 2025-12-31 13F GILEAD SCIENCES COM 375558103 8,160 6,317 342.76 1,002 390.69 0.0135
2025-11-10 2025-09-30 13F GILEAD SCIENCES COM 375558103 1,843 -84 -4.36 205 -4.23 0.0039
2025-08-06 2025-06-30 13F GILEAD SCIENCES COM 375558103 1,927 1,927 214 0.0031
2023-11-06 2023-09-30 13F GILEAD SCIENCES COM 375558103 0 -14,552 -100.00 0 -100.00
2023-08-07 2023-06-30 13F GILEAD SCIENCES COM 375558103 14,552 -2,475 -14.54 1,122 -20.61 0.0427
2023-05-09 2023-03-31 13F GILEAD SCIENCES COM 375558103 17,027 -2,968 -14.84 1,413 -17.72 0.0612
2023-01-20 2022-12-31 13F GILEAD SCIENCES COM 375558103 19,995 897 4.70 1,717 45.67 0.0836
2022-11-03 2022-09-30 13F GILEAD SCIENCES COM 375558103 19,098 -1,378 -6.73 1,178 -6.95 0.0657
2022-08-04 2022-06-30 13F GILEAD SCIENCES COM 375558103 20,476 465 2.32 1,266 6.39 0.0723
2022-04-27 2022-03-31 13F GILEAD SCIENCES COM 375558103 20,011 932 4.88 1,190 -14.08 0.0674
2022-01-31 2021-12-31 13F GILEAD SCIENCES COM 375558103 19,079 -7 -0.04 1,385 3.90 0.0782
2021-11-15 2021-09-30 13F GILEAD SCIENCES COM 375558103 19,086 7,160 60.04 1,333 62.36 0.0903
2021-08-09 2021-06-30 13F GILEAD SCIENCES COM 375558103 11,926 -10 -0.08 821 6.49 0.0584
2021-05-10 2021-03-31 13F GILEAD SCIENCES COM 375558103 11,936 556 4.89 771 16.29 0.0684
2021-02-04 2020-12-31 13F GILEAD SCIENCES COM 375558103 11,380 -545 -4.57 663 -12.07 0.0744
2020-10-19 2020-09-30 13F GILEAD SCIENCES COM 375558103 11,925 245 2.10 754 -16.13 0.1013
2020-08-13 2020-06-30 13F GILEAD SCIENCES COM 375558103 11,680 -4,662 -28.53 899 -26.43 0.1391
2020-05-06 2020-03-31 13F GILEAD SCIENCES COM 375558103 16,342 -4,840 -22.85 1,222 -11.19 0.2389
2020-02-14 2019-12-31 13F GILEAD SCIENCES COM 375558103 21,182 -239 -1.12 1,376 1.33 0.2824
2019-11-05 2019-09-30 13F GILEAD SCIENCES COM 375558103 21,421 4,682 27.97 1,358 20.07 0.2202
2019-08-20 2019-06-30 13F GILEAD SCIENCES COM 375558103 16,739 8,298 98.31 1,131 106.01 0.1935
2019-05-14 2019-03-31 13F GILEAD SCIENCES COM 375558103 8,441 8,441 549 0.0979
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.